CN208795008U - A kind of sintering circular-cooler waste heat comprehensive utilization system based on Organic Rankine Cycle - Google Patents
A kind of sintering circular-cooler waste heat comprehensive utilization system based on Organic Rankine Cycle Download PDFInfo
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Abstract
The utility model discloses a kind of sintering circular-cooler waste heat comprehensive utilization system based on Organic Rankine Cycle mainly includes sintering circular-cooler waste-heat recovery device, afterheat boiler electricity-generating system and organic Rankine cycle power generation system.The ring cold machine high temperature section exhanst gas outlet and the exhaust-heat boiler flue gas inlet communication, the exhaust-heat boiler flue gas outlet and ring cold machine low-temperature zone exhanst gas outlet are connected to the evaporator gas inlet of the Organic Rankine Cycle, and the evaporator exhanst gas outlet is connected to economizer gas inlet and ring cold machine high temperature section gas inlet；The evaporator sender property outlet and the expanding machine working medium inlet communication, the outlet working medium of the expanding machine sequentially enter regenerator and condenser, cryogenic fluid outlet and the evaporator working medium inlet communication of the regenerator.150 ~ 200 DEG C of fume afterheats of the utility model high efficiente callback sintering exhaust-heat boiler exiting flue gas waste heat and the outlet of ring cold machine low-temperature zone, improve waste heat recovery rate and ton mine generated energy.
Description
Technical field
The utility model relates to steel industry technical field of waste heat utilization, and in particular to a kind of sintering circular-cooler residual heat integrative
Utilize system.
Background technique
Currently, in Iron and Steel Enterprises in China, what the recycling of sintering mine sensible heat was mainly realized by blowing-type annular cooler,
And the mode of blowing-type ring cold machine waste heat recycling is mainly Fractional Collections cooling air.It is 405m with film-cooled heat2Air blast
For formula ring cold machine, wind-collecting cover can be divided into 5 sections along ring cold trolley traffic direction, be followed successively by ring it is one section cold, two sections, until five
Section.Currently, the fume afterheat that major part iron and steel enterprise, China only exports one section, two sections and three sections is recycled, by ring
Cold one section, second stage exit flue gas mixing after be passed through waste heat boiler carry out dynamic power, by the cold three sections of exiting flue gas of ring lead to sintering
The drying of machine progress hot gas sintering and mixed material.Since the flue-gas temperature of the cold four sections and five sections outlets of ring is lower than 200 DEG C, very much
The fume afterheat resource of the cold four sections and five sections outlets of ring has been thrown aside by enterprise, but cold one to the three section of exiting flue gas excess heat of ring only accounts for ring
2/3rds of cold exiting flue gas waste heat total amount, the low-temperature flue gas waste heat of remaining one third is directly emptied, and is caused big
Measure the waste of residual heat resources.
In addition, smoke temperature at outlet of waste heat boiler matched with sintering circular-cooler is at 150 DEG C or so, this partial fume enters
Temperature in economizer after preboiler water supply is also at 100 DEG C or more.In view of ring cold machine top wind-collecting cover and ring cold trolley it
Between existing Air Leakage, if being passed through economizer exit flue gas as circulating flue gas in one, two section of ring cold machine, it is also necessary to supplement
A large amount of cooling air will lead to cause one, two section of input gas temperature of ring cold machine since hot and cold air mixes in this way
Inhomogeneities reduces the quality of ring cold machine one, second stage exit flue gas, influences the waste heat power generation of subsequent waste heat boiler；If will save
Coal device exiting flue gas directly empties and will cause the waste of a large amount of residual heat resources.
Above two parts low temperature heat there are aiming at the problem that, the utility model proposes one kind be based on organic Rankine
The sintering circular-cooler waste heat comprehensive utilization system of circulation can not only guarantee the flow and temperature of one, two section of import flue gas of ring cold machine
Degree improves the quality of ring cold machine high temperature section exiting flue gas, can also increase substantially the comprehensive hair of ring cold machine exiting flue gas waste heat
Electricity, further depth recycle the residual heat resources of sintering circular-cooler exiting flue gas, provide to Iron and Steel Enterprises in China waste heat is improved
Source recovery utilization rate and promotion industrial energy saving emission reduction all have a very important significance.
Utility model content
In order to solve current sintering circular-cooler low-temperature zone and mating heat boiler outlet fume afterheat is not fully utilized and
The problem of causing residual heat resources to waste, further depth recycle sintering circular-cooler exiting flue gas waste heat, improve ring cold machine and go out
The comprehensive electric generating amount of mouthful fume afterheat, the utility model proposes a kind of sintering circular-cooler residual heat integrative based on Organic Rankine Cycle
Utilize system.
A kind of sintering circular-cooler waste heat comprehensive utilization system based on Organic Rankine Cycle includes sintering circular-cooler 1, waste heat
Boiler power generation system and organic Rankine cycle power generation system；The sintering circular-cooler 1 is five-part form sintering circular-cooler, waste heat boiler
Electricity generation system includes concatenated steam turbine 5 and the first generator 6, and organic Rankine cycle power generation system includes concatenated expanding machine 15
With the second generator 16；
It further include smoke circulating system, cooling water recirculation system and the organic working medium circulatory system；
The smoke circulating system includes hot precipitator 2, cold precipitator 3, waste heat boiler 4, evaporator 14 and saves coal
Device 9；
One section of exhanst gas outlet of the sintering circular-cooler 1 and two sections of exhanst gas outlet parallel connections, and it is connected to hot precipitator 2
Import, the outlet of hot precipitator 2 air inlet of waste heat boiler 4, the gas outlet of waste heat boiler 4 connect evaporator 14
Air inlet, the gas outlet of evaporator 14 is respectively communicated with the air inlet and high temperature circulation blower fan 13 of air blower 12 by tee tube
Air inlet, the air outlet of air blower 12 is connected to the air inlet of economizer 9, and the gas outlet of economizer 9 is exhanst gas outlet 21；It is high
The air outlet of warm circulating fan 13 is respectively communicated with one section of gas inlet and two sections of gas inlets；
Three sections of exhanst gas outlets of the sintering circular-cooler 1 are the exhanst gas outlet 22 of sintering circular-cooler 1, and the flue gas of discharge is used for
The igniting combustion supporting and hot gas sintering of 1 front end sintering machine of sintering circular-cooler；
Four sections of exhanst gas outlets of the sintering circular-cooler 1 and five sections of exhanst gas outlet parallel connections, and it is connected to cold precipitator 3
Import, the outlet of cold precipitator 3 gas outlet of waste heat boiler 4；Four sections of exhanst gas outlets and five sections of exhanst gas outlets
For 150 ~ 200 DEG C of exhanst gas outlet of low-temperature zone；
Three sections of air inlets, four sections of air inlets and the five sections of air inlet parallel connections of the sintering circular-cooler 1 are cooling air inlet
23；
The cooling water recirculation system includes cooling tower 10, condenser 7, drain water pump 11, condenser 19 and condensate pump
20；
The inlet communication of the steam turbine 5 water outlet of waste heat boiler 4, the outlet of steam turbine 5 condenser 7
High-temperature inlet water mouth, the high-temperature water outlet mouth of condenser 7 are connected to the import of water supply water pump 8, the outlet of water supply water pump 8 province's coal
The water inlet of device 9, the water outlet of economizer 9 are connected to the water inlet of waste heat boiler 4；The low temperature water outlet of condenser 7 is connected to
First water inlet of cooling tower 10, the water outlet of cooling tower 10 are connected to the water inlet of condenser 19, the water outlet of condenser 19
The second water inlet of cooling tower 10 is connected to by concatenated cooling water pump 20；The low temperature water inlet and cooling tower 10 of condenser 7
Water outlet between connect drain water pump 11；
The organic working medium circulatory system includes expanding machine 15, evaporator 14, regenerator 17, working medium pump 18 and condenser
19；
The inlet communication of the expanding machine 15 sender property outlet of evaporator 14, the outlet of expanding machine 15 regenerator
17 high temperature import, the hot outlet of regenerator 17 are connected to the working medium import of condenser 19, and the sender property outlet of condenser 19 is logical
The low temperature import that concatenated working medium pump 18 is connected to regenerator 17 is crossed, the low-temperature outlet of regenerator 17 is connected to the work of evaporator 14
Matter import；
Wherein waste heat boiler 4, steam turbine 5, the first generator 6, condenser 7, water supply water pump 8, economizer 9, cooling tower 10,
Drain water pump 11 and air blower 12 constitute afterheat boiler electricity-generating system；
Wherein evaporator 14, expanding machine 15, the second generator 16, regenerator 17, working medium pump 18, condenser 19 and condensed water
Pump 20 constitutes organic Rankine cycle power generation system；
When work, the flue gas being discharged from one section of sintering circular-cooler 1 and two sections of exhanst gas outlets passes through 2 dedusting of hot precipitator
After enter waste heat boiler 4, the flue gas being discharged from waste heat boiler 4 and four sections of sintering circular-cooler 1 and five sections of exhanst gas outlets discharges
Flue gas mixing after enter evaporator 14, the flue gas that evaporator 14 is discharged is divided into two-way, enters one section of sintering circular-cooler 1 all the way
It is recycled with two sections, another way enters 9 heating boiler feed water of economizer；The superheated steam come out from waste heat boiler 4 enters
Steam turbine 5 makes the first generator 6 generate electricity, using condenser 7 and economizer 9, comes back to waste heat boiler as boiler feedwater
It is recycled in 4；The saturation or overheat working substance steam come out from evaporator 14 enters expanding machine 15, sends out the second generator 16
Electricity, then regenerator 17 and condenser 19 are sequentially entered, it is condensed into condenser 19 after saturated liquid and returns to regenerator 17 again in advance
Heat finally comes back in evaporator 14 and is recycled；The cooling water being discharged from cooling tower 10 is divided into two-way, enters all the way solidifying
Steam exhaust is cooled to liquid in vapour device 7, another way then enters in condenser 19 cryogenic fluid steam being condensed into saturated liquid,
Two-way cooling water comes back in cooling tower 10 and is recycled；
Realize the fume afterheat of 4 exhanst gas outlet of waste heat boiler and four sections of sinter ring cold machine 1 and five sections of exhanst gas outlets
150 ~ 200 DEG C of flue gas waste heat recoveries, the waste heat recovery rate of 1 exiting flue gas of sinter ring cold machine is 80 ~ 90%, and sinter ring is cold
The ton mine generated energy of machine 1 is 25~30kWh.
The technical solution further limited is as follows:
The hot precipitator 2 is gravitational precipitator.
The cold precipitator 3 is cyclone dust collectors.
The cycle fluid of organic Rankine cycle power generation system is low-boiling-point organic compound, and cyclical patterns is subcritical cycle.
The expanding machine 15 is screw expander, the rotor phase of the impeller of the expanding machine 15 and second generator 16
Connection.
The evaporator 14 is fin-tube type heat exchanger.
The economizer 9 is helical finned tube type heat exchanger.
The advantageous effects of the utility model embody in the following areas:
(1) the utility model is based on Organic Rankine Cycle generation technology, comprehensive reutilization sintering exhaust-heat boiler and burning
Tie ring cold machine low-temperature zone exiting flue gas residual heat resources, be greatly improved sintering circular-cooler exiting flue gas waste heat the rate of recovery and
Generated energy is of great practical significance to promotion steel industry energy-saving and emission-reduction.
(2) the utility model is guaranteed under the premise of not needing additionally to supplement cooling air using flue gas recirculating technique
The flow and temperature of sintering circular-cooler high temperature section import flue gas avoids and causes import flue gas temperature since hot and cold air mixes
The inhomogeneities of degree, improves the quality of ring cold machine high temperature section exiting flue gas, and then improves the operation effect of sintering exhaust-heat boiler
Rate and waste heat power generation.
(3) the utility model, can be by sintering circular-cooler exiting flue gas waste heat under conditions of guaranteeing sinter outlet temperature
The rate of recovery improves 40 ~ 50%, while the ton mine generated energy of sintering circular-cooler being made to improve 30 ~ 40%.
Detailed description of the invention
Fig. 1 is the sintering circular-cooler exiting flue gas waste heat comprehensive utilization system working principle diagram of the utility model.
Serial number in Fig. 1: sinter ring cold machine 1, hot precipitator 2, cold precipitator 3, waste heat boiler 4, steam turbine 5,
One generator 6, condenser 7, water supply water pump 8, economizer 9, cooling tower 10, drain water pump 11, air blower 12, high temperature circulation blower fan
13, evaporator 14, expanding machine 15, the second generator 16, regenerator 17, working medium pump 18, condenser 19, cooling water pump 20, province's coal
Device exhanst gas outlet 21, ring cold machine exhanst gas outlet 22, cooling air inlet 23.
Specific embodiment
With reference to the accompanying drawing, the utility model is further described by embodiment.
Referring to Fig. 1, a kind of sintering circular-cooler waste heat comprehensive utilization system based on Organic Rankine Cycle includes that sintered ring is cold
Machine 1, afterheat boiler electricity-generating system and organic Rankine cycle power generation system.Sintering circular-cooler 1 is five-part form sintering circular-cooler, waste heat
Boiler power generation system includes concatenated steam turbine 5 and the first generator 6, and organic Rankine cycle power generation system includes concatenated expansion
Machine 15 and the second generator 16.
It further include smoke circulating system, cooling water recirculation system and the organic working medium circulatory system.
Smoke circulating system includes hot precipitator 2, cold precipitator 3, waste heat boiler 4, evaporator 14 and economizer 9；
Hot precipitator 2 is gravitational precipitator, and cold precipitator 3 is cyclone dust collectors.
One section of exhanst gas outlet 101 of sintering circular-cooler 1 and two sections of exhanst gas outlets 102 are in parallel, and are connected to hot precipitator 2
Import, the outlet of hot precipitator 2 air inlet of waste heat boiler 4, the gas outlet of waste heat boiler 4 connect evaporator
14 air inlet, the gas outlet of evaporator 14 are respectively communicated with the air inlet and high temperature circulation blower fan of air blower 12 by tee tube
13 air inlet, the air outlet of air blower 12 are connected to the air inlet of economizer 9, and the gas outlet of economizer 9 is exhanst gas outlet 21；
The air outlet of high temperature circulation blower fan 13 is respectively communicated with one section of gas inlet and two sections of gas inlets.
Three sections of exhanst gas outlets 103 of sintering circular-cooler 1 are the exhanst gas outlet 22 of sintering circular-cooler 1, and the flue gas of discharge is used for
The igniting combustion supporting and hot gas sintering of 1 front end sintering machine of sintering circular-cooler.
Four sections of exhanst gas outlets 104 of sintering circular-cooler 1 and five sections of exhanst gas outlets 105 are in parallel, and are connected to cold precipitator 3
Import, the outlet of cold precipitator 3 gas outlet of waste heat boiler 4；Four sections of exhanst gas outlets and five sections of flue gases go out
The exhanst gas outlet that mouth is 150 ~ 200 DEG C of low-temperature zone.
Three sections of air inlets, four sections of air inlets and the five sections of air inlet parallel connections of sintering circular-cooler 1 are cooling air inlet 23.
Cooling water recirculation system includes cooling tower 10, condenser 7, drain water pump 11, condenser 19 and condensate pump 20.
The inlet communication of steam turbine 5 water outlet of waste heat boiler 4, the outlet of steam turbine 5 high temperature of condenser 7
Water inlet, the high-temperature water outlet mouth of condenser 7 are connected to the import of water supply water pump 8, the outlet of water supply water pump 8 economizer 9
Water inlet, the water outlet of economizer 9 is connected to the water inlet of waste heat boiler 4；The low temperature water outlet of condenser 7 is connected to cooling
First water inlet of tower 10, the water outlet of cooling tower 10 are connected to the water inlet of condenser 19, and the water outlet of condenser 19 passes through
Concatenated cooling water pump 20 is connected to the second water inlet of cooling tower 10；The low temperature water inlet of condenser 7 and going out for cooling tower 10
Drain water pump of connecting between the mouth of a river 11.
The organic working medium circulatory system includes expanding machine 15, evaporator 14, regenerator 17, working medium pump 18 and condenser 19.
The inlet communication of expanding machine 15 sender property outlet of evaporator 14, the outlet of expanding machine 15 regenerator 17
High temperature import, the hot outlet of regenerator 17 are connected to the working medium import of condenser 19, and the sender property outlet of condenser 19 passes through string
The working medium pump 18 of connection is connected to the low temperature import of regenerator 17, the low-temperature outlet of regenerator 17 be connected to the working medium of evaporator 14 into
Mouthful.
Wherein waste heat boiler 4, steam turbine 5, the first generator 6, condenser 7, water supply water pump 8, economizer 9, cooling tower 10,
Drain water pump 11 and air blower 12 constitute afterheat boiler electricity-generating system；Economizer 9 is helical finned tube type heat exchanger.
Wherein evaporator 14, expanding machine 15, the second generator 16, regenerator 17, working medium pump 18, condenser 19 and condensed water
Pump 20 constitutes organic Rankine cycle power generation system；Evaporator 14 is fin-tube type heat exchanger；Expanding machine 15 is screw expander, expansion
The impeller of machine 15 is connected with the rotor of second generator 16.The cycle fluid of organic Rankine cycle power generation system is low boiling
Point organic matter, cyclical patterns is subcritical cycle.
Detailed description are as follows for the working principle of the utility model:
The flue gas being discharged from 1 high temperature section of sintering circular-cooler enters in waste heat boiler 4 after 2 dedusting of hot precipitator,
Boiler feedwater is heated into the superheated steam of high temperature and pressure, the flue gas and 1 low temperature of sintering circular-cooler being discharged from 4 tail portion of waste heat boiler
It is entered in evaporator 14 together after the flue gas mixing of section discharge, circulation organic working medium is heated into saturation or superheated steam, from
The flue gas of the outlet of evaporator 14 discharge is divided into two parts, and it is cold that a part enters sintered ring under the action of high temperature circulation blower fan 13
The high temperature section of machine 1 recycles, and another part enters heating boiler feed water in economizer 9 under the action of air blower 12, with
It enters in chimney and is emptied from the exhanst gas outlet of economizer 9 afterwards；The superheated steam come out from waste heat boiler 4 enters steamer
Expansion work in machine 5 pushes the first generator 6 to generate electricity, and the steam exhaust being discharged from 5 tail portion of steam turbine is cooling in condenser 7
After enter in economizer 9 and preheated, finally come back in waste heat boiler 4 and be recycled as boiler feedwater；From evaporation
The saturation or overheat working substance steam that device 14 comes out are first into expansion work in expanding machine 15, and the second generator 16 is pushed to carry out
Power generation, then sequentially enters in regenerator 17 and condenser 19 under the action of working medium pump 18, is condensed into condenser 19 full
It is preheated with being returned in regenerator 17 after liquid again, finally comes back in evaporator 14 and be recycled；From cooling tower 10
The cooling water of outlet discharge is divided into two parts, and a part of cooling water enters the steam exhaust that cooling steam turbine 5 is discharged in condenser 7,
Another part cooling water then enters in condenser 19 the overheat working substance steam of low pressure being condensed into saturated liquid, finally from condensing
The cooling water of the outlet discharge of the outlet and condenser 19 of device 7, which comes back in cooling tower 10, to be recycled.
Referring to table 1, with 360m2For the corresponding circular cooler of sintering machine, to sintering exhaust-heat boiler and sintering circular-cooler
The exiting flue gas UTILIZATION OF VESIDUAL HEAT IN of low-temperature zone carries out analytical calculation.The cycle fluid of organic rankine cycle system is organic using low boiling point
Object, cyclical patterns use subcritical cycle, and the outlet working medium of evaporator is saturated vapor, and the outlet working medium of condenser is saturated solution
Body.As it can be seen from table 1 using the outlet of Organic Rankine Cycle technology recycling sintering exhaust-heat boiler and sintering circular-cooler low-temperature zone
Fume afterheat may make the temperature of evaporator outlet flue gas to be down to 85.3 DEG C, and the recovery utilization rate of low-temperature sintering fume afterheat mentions
It is high by about 50%, most of flue gas of evaporator outlet is passed into ring cold machine high temperature section as circulating flue gas at this time, is avoided
The inhomogeneities that ring cold machine high temperature section input gas temperature is caused due to hot and cold air mixing, is improved into waste heat boiler
Flue gas quality, and then improve the waste heat power generation of waste heat boiler.By table 1 it can also be seen that the hair of organic rankine cycle system
Electricity is 4176kW, and the ton mine generated energy for being converted into sintering circular-cooler is 7.73 kWh, more than sintering under current identical operating condition
Based on the ton mine bill amount 20-25 kWh of heat boiler, increasing organic Rankine cycle power generation system may make sintering circular-cooler
Ton mine generated energy increases 30-40%.It can be seen that using Organic Rankine Cycle generation technology recycle sintering exhaust-heat boiler and
The exiting flue gas residual heat resources of sintering circular-cooler low-temperature zone, can not only increase substantially the waste heat of sintering circular-cooler exiting flue gas
The rate of recovery and ton mine generated energy, additionally it is possible to increase the quality of ring cold machine high-temperature exiting flue gas, and then improve sintering exhaust-heat boiler
Operational efficiency, to improve iron and steel enterprise's cryogenic waste heat resource recovery utilization rate and push industrial energy saving emission reduction all have very
Important meaning.
Claims (7)
1. a kind of sintering circular-cooler waste heat comprehensive utilization system based on Organic Rankine Cycle, including sintering circular-cooler (1), waste heat
Boiler power generation system and organic Rankine cycle power generation system；The sintering circular-cooler (1) is five-part form sintering circular-cooler, waste heat pot
Furnace electricity generation system includes concatenated steam turbine (5) and the first generator (6), and organic Rankine cycle power generation system includes concatenated swollen
Swollen machine (15) and the second generator (16)；It is characterized by:
It further include smoke circulating system, cooling water recirculation system and the organic working medium circulatory system；
The smoke circulating system include hot precipitator (2), cold precipitator (3), waste heat boiler (4), evaporator (14) and
Economizer (9)；
One section of exhanst gas outlet of the sintering circular-cooler (1) and two sections of exhanst gas outlet parallel connections, and it is connected to hot precipitator (2)
Import, the outlet of hot precipitator (2) the air inlet of waste heat boiler (4), the gas outlet of waste heat boiler (4) connect steaming
The air inlet of device (14) is sent out, the gas outlet of evaporator (14) is respectively communicated with the air inlet and height of air blower (12) by tee tube
The air inlet of warm circulating fan (13), the air outlet of air blower (12) are connected to the air inlet of economizer (9), economizer (9)
Gas outlet is exhanst gas outlet；The air outlet of high temperature circulation blower fan (13) be respectively communicated with one section of gas inlet and two sections of flue gases into
Mouthful；
Three sections of exhanst gas outlets of the sintering circular-cooler (1) are the exhanst gas outlet (22) of sintering circular-cooler (1), and the flue gas of discharge is used
In the igniting combustion supporting and hot gas sintering of sintering circular-cooler (1) front end sintering machine；
Four sections of exhanst gas outlets of the sintering circular-cooler (1) and five sections of exhanst gas outlet parallel connections, and it is connected to cold precipitator (3)
Import, the outlet of cold precipitator (3) the gas outlet of waste heat boiler (4)；Four sections of exhanst gas outlets and five sections of flue gases
The exhanst gas outlet that outlet is 150 ~ 200 DEG C of low-temperature zone；
Three sections of air inlets, four sections of air inlets and the five sections of air inlet parallel connections of the sintering circular-cooler (1) are cooling air inlet
(23)；
The cooling water recirculation system includes cooling tower (10), condenser (7), drain water pump (11), condenser (19) and cooling
Water pump (20)；
The inlet communication of the steam turbine (5) the water outlet of waste heat boiler (4), the outlet of steam turbine (5) condenser
(7) high-temperature inlet water mouth, the high-temperature water outlet mouth of condenser (7) are connected to the import of water supply water pump (8), and water supply water pump (8) goes out
Mouth is connected to the water inlet of economizer (9), and the water outlet of economizer (9) is connected to the water inlet of waste heat boiler (4)；Condenser
(7) low temperature water outlet is connected to the first water inlet of cooling tower (10), and the water outlet of cooling tower (10) is connected to condenser
(19) water inlet, the water outlet of condenser (19) by concatenated cooling water pump (20) be connected to the second of cooling tower (10) into
The mouth of a river；It connects between the low temperature water inlet of condenser (7) and the water outlet of cooling tower (10) drain water pump (11)；
The organic working medium circulatory system includes expanding machine (15), evaporator (14), regenerator (17), working medium pump (18) and condensation
Device (19)；
The inlet communication of the expanding machine (15) the sender property outlet of evaporator (14), the outlet of expanding machine (15) backheat
The high temperature import of device (17), the hot outlet of regenerator (17) are connected to the working medium import of condenser (19), condenser (19)
Sender property outlet is connected to the low temperature import of regenerator (17) by concatenated working medium pump (18), and the low-temperature outlet of regenerator (17) connects
Lead to the working medium import of evaporator (14)；
Wherein waste heat boiler (4), steam turbine (5), the first generator (6), condenser (7), water supply water pump (8), economizer (9),
Cooling tower (10), drain water pump (11) and air blower (12) constitute afterheat boiler electricity-generating system；
Wherein evaporator (14), expanding machine (15), the second generator (16), regenerator (17), working medium pump (18), condenser (19)
Organic Rankine cycle power generation system is constituted with cooling water pump (20)；
When work, the flue gas being discharged from one section of sintering circular-cooler (1) and two sections of exhanst gas outlets passes through hot precipitator (2) dedusting
After enter waste heat boiler (4), from waste heat boiler (4) be discharged flue gas go out with four sections of sintering circular-cooler (1) and five sections of flue gases
Enter evaporator (14) after the flue gas mixing of mouth discharge, the flue gas of evaporator (14) discharge is divided into two-way, all the way into sintered ring
One section and two sections of cold (1) recycles, and another way enters economizer (9) heating boiler feed water；Go out from waste heat boiler (4)
The superheated steam come enters steam turbine (5), and the first generator (6) is made to generate electricity, using condenser (7) and economizer (9), as
Boiler feedwater comes back in waste heat boiler (4) and is recycled；From evaporator (14) come out saturation or overheat working substance steam into
Enter expanding machine (15), so that the second generator (16) is generated electricity, then sequentially enter regenerator (17) and condenser (19), in condenser
(19) it is condensed into after saturated liquid and returns to regenerator (17) preheating again, finally come back in evaporator (14) and be recycled；
The cooling water being discharged from cooling tower (10) is divided into two-way, is entered in condenser (7) all the way steam exhaust being cooled to liquid, another way
It then enters in condenser (19) and cryogenic fluid steam is condensed into saturated liquid, two-way cooling water comes back to cooling tower (10)
Interior recycling；
Realize the fume afterheat of waste heat boiler (4) exhanst gas outlet and the four sections and five sections exhanst gas outlets of sintering circular-cooler (1)
150 ~ 200 DEG C of flue gas waste heat recoveries, the waste heat recovery rate of sintering circular-cooler (1) exiting flue gas are 80 ~ 90%, sintering circular-cooler (1)
Ton mine generated energy be 25~30kWh.
2. a kind of sintering circular-cooler waste heat comprehensive utilization system based on Organic Rankine Cycle according to claim 1,
Be characterized in that: the hot precipitator (2) is gravitational precipitator.
3. a kind of sintering circular-cooler waste heat comprehensive utilization system based on Organic Rankine Cycle according to claim 1,
Be characterized in that: the cold precipitator (3) is cyclone dust collectors.
4. a kind of sintering circular-cooler waste heat comprehensive utilization system based on Organic Rankine Cycle according to claim 1,
Be characterized in that: the cycle fluid of organic Rankine cycle power generation system is low-boiling-point organic compound, and cyclical patterns is subcritical cycle.
5. a kind of sintering circular-cooler waste heat comprehensive utilization system based on Organic Rankine Cycle according to claim 1,
Be characterized in that: the expanding machine (15) is screw expander, the impeller of the expanding machine (15) and second generator (16)
Rotor be connected.
6. a kind of sintering circular-cooler waste heat comprehensive utilization system based on Organic Rankine Cycle according to claim 1,
Be characterized in that: the evaporator (14) is fin-tube type heat exchanger.
7. a kind of sintering circular-cooler waste heat comprehensive utilization system based on Organic Rankine Cycle according to claim 1,
Be characterized in that: the economizer (9) is helical finned tube type heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821164361.XU CN208795008U (en) | 2018-07-23 | 2018-07-23 | A kind of sintering circular-cooler waste heat comprehensive utilization system based on Organic Rankine Cycle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108827008A (en) * | 2018-07-23 | 2018-11-16 | 中国科学技术大学 | A kind of sintering circular-cooler waste heat comprehensive utilization system based on Organic Rankine Cycle |
| CN115030792A (en) * | 2022-05-10 | 2022-09-09 | 昆明理工大学 | Medium-low temperature flue gas whitening and waste heat ORC power generation and water resource recovery system |
-
2018
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108827008A (en) * | 2018-07-23 | 2018-11-16 | 中国科学技术大学 | A kind of sintering circular-cooler waste heat comprehensive utilization system based on Organic Rankine Cycle |
| CN108827008B (en) * | 2018-07-23 | 2023-08-29 | 中国科学技术大学 | Sintering circular cooler waste heat comprehensive utilization system based on organic Rankine cycle |
| CN115030792A (en) * | 2022-05-10 | 2022-09-09 | 昆明理工大学 | Medium-low temperature flue gas whitening and waste heat ORC power generation and water resource recovery system |
| CN115030792B (en) * | 2022-05-10 | 2023-06-06 | 昆明理工大学 | Medium-low temperature flue gas whitening and waste heat ORC power generation and water resource recovery system |
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